2. Not Finding Out Her Relationship Status Early

The last thing you want to do is waste 20 minutes of both people's time talking to a woman who's dating someone else. Find out if she's single as soon as you can. If she’s not, move on. I can’t tell you how many times I’ve been approached and felt it would be rude to immediately assume the guy is interested (“Um, sorry, I’m actually married…” “Huh? I was just here to tell you you've got some food on your face…”), so instead I'll let the conversation go on too long. Most of the time, though, it’s information we won’t offer up immediately because: Hey, it’s nice to get hit on once in a while. We're not above enjoying some attention now and again. So take it upon yourself to find out early, so everyone is clear on the situation.